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[Ludachris]

First of all, before you throw a bunch of mods at the car, do you know what class you'd be running in with your current setup? I'd advise against adding mods that could potentially bump you up to a more competitive class if you're just starting out.

The single most effective mod for autocross is good tires. You can modify your car all you want - without good tires, the mods will mean nothing. If you can't afford wider wheels/tires right now, just get some sticky tires for your current wheels. Don't spend any other money on mods until you participate in your first event and find the weak spot in the car and learn your own abilities and driving style. I'd forget about adding power mods completely for now. And when it comes to suspension mods, do one at a time (if possible) so that you can feel the difference each time. You need to find out how the car reacts to driver input before you can change things. If it understeers too much, you need to address it. If it has too much roll, causing balancing issues, then that has to be addressed. Etc, etc.